# Overview

### Smart Contract <a href="#smart-contract" id="smart-contract"></a>

Enzyme Vaults are smart contracts that can be tailored to the owner's objectives and specific requirements. The structure enables any number of participants, from one to an unlimited amount, to deposit funds in exchange for Vault Shares.

### Self-Custodial <a href="#self-custodial" id="self-custodial"></a>

Enzyme Vaults are fully self-custodial smart contracts. Enzyme provides the infrastructure to deploy the Vault but has no control over the funds and the strategy beeing executed.

Enzyme may require Vault upgrades to align with improvements to the underlying protocol. These upgrades are designed to enhance security and functionality, while ensuring continuity for Vault Owners and investors.

### Vault Shares <a href="#vault-shares" id="vault-shares"></a>

The Vault Shares are issued **as ERC-20 tokens**, with transferability and parameters configurable by the Vault owner, enabling businesses and institutions to deliver embedded yield tokens. Vault shares are issued under **a custom ticker** set by the Vault Owner.

### Networks

With Enzyme Blue, Enzyme Vaults can be deployed on Ethereum, Arbitrum, Base or Polygon.


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